Code
B1319
ALFA ROMEO
B — Body
Driver door open circuit fault / short to ground
Views:
UK: 5
EN: 3
RU: 2
AI status
Completed
Completed
100%
Causes
- Damaged or chafed wiring in driver door harness (hinge area)
- Corroded or loose connector at door jamb switch or door module
- Faulty driver door jamb/lock switch (mechanical/electrical failure)
- Short to ground in the switch output wire
- Faulty Body Control Module (BCM) or door module (less common)
- Water ingress or contamination in switch or connector
Symptoms
- Driver door open indicator lamp or message illuminated
- Interior lights stay on or do not respond correctly
- Central locking or alarm may behave erratically
- Possible inability to lock/unlock driver door from remote or switch
- DTC present in vehicle diagnostic scanner
What to check
- Read all stored/active codes with a diagnostic scanner and record freeze frame/live data
- Visually inspect driver door harness, hinge grommet, and connectors for damage, corrosion, pin push-out, or moisture
- Check operation of driver door jamb/lock switch by manually actuating it and watching live data (door open/closed status) on a scan tool
- Back-probe the switch connector to confirm signal changes when door is opened/closed
- Perform a wiggle test on the wiring while watching live data to reproduce the fault
- Inspect door lock actuator and latch area for mechanical binding that could affect the switch
Signal parameters
- Supply voltage to switch: ~12 V (check for presence with key on)
- Switch output: toggles between supply voltage and open/high-impedance or ground depending on design; monitor as door opens/closes
- Resistance/continuity on switch circuit: near infinite when open, low when closed (varies by design)
- Live data PID: Driver door open status (0/1) should change consistently with physical state
Diagnostic algorithm
- Confirm DTC and clear codes, then cycle door to see if code returns; note when it returns (immediately, after driving, after rain).
- Visually inspect connectors at door jamb switch and BCM for corrosion, water ingress, or bent pins; secure connectors and recheck.
- With ignition ON, back-probe the switch connector. Verify supply voltage, ground reference, and switch output changes when opening/closing the door. Record voltages.
- If the switch output is stuck to ground or shorted, disconnect the door connector and measure resistance between the switched wire and chassis ground. Low resistance indicates a short to ground in the harness.
- Perform continuity checks from the switch pin to the BCM/door module pin with connectors disconnected; check for high resistance or intermittent connection while flexing the harness (hinge area).
- If wiring and connector check good, bench-test or replace the door jamb/lock switch, then re-test.
- If fault persists after replacing switch and repairing wiring, inspect/replace the BCM/door module or perform module bench diagnostics (refer to manufacturer procedures).
- After repairs, clear codes and perform functional test and road test to confirm fault no longer returns.
Likely causes
- Wiring damage at door hinge grommet causing intermittent short to ground
- Corroded/mis-seated connector at the door jamb switch
- Failed door jamb/lock switch
Fault status
Status
Driver door open circuit / short to ground — the driver door open/close switch circuit is reporting either an open circuit or an unintended connection to ground; fault stored when circuit state is outside expected parameters.
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
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Code
B1319
FIAT
B — Body
Driver door open circuit fault / short to ground
Views:
UK: 4
EN: 2
RU: 1
AI status
Completed
Completed
100%
Causes
- Damaged or chafed wiring in driver door harness (hinge area)
- Corroded or loose connector at door jamb switch or door module
- Faulty driver door jamb/lock switch (mechanical/electrical failure)
- Short to ground in the switch output wire
- Faulty Body Control Module (BCM) or door module (less common)
- Water ingress or contamination in switch or connector
Symptoms
- Driver door open indicator lamp or message illuminated
- Interior lights stay on or do not respond correctly
- Central locking or alarm may behave erratically
- Possible inability to lock/unlock driver door from remote or switch
- DTC present in vehicle diagnostic scanner
What to check
- Read all stored/active codes with a diagnostic scanner and record freeze frame/live data
- Visually inspect driver door harness, hinge grommet, and connectors for damage, corrosion, pin push-out, or moisture
- Check operation of driver door jamb/lock switch by manually actuating it and watching live data (door open/closed status) on a scan tool
- Back-probe the switch connector to confirm signal changes when door is opened/closed
- Perform a wiggle test on the wiring while watching live data to reproduce the fault
- Inspect door lock actuator and latch area for mechanical binding that could affect the switch
Signal parameters
- Supply voltage to switch: ~12 V (check for presence with key on)
- Switch output: toggles between supply voltage and open/high-impedance or ground depending on design; monitor as door opens/closes
- Resistance/continuity on switch circuit: near infinite when open, low when closed (varies by design)
- Live data PID: Driver door open status (0/1) should change consistently with physical state
Diagnostic algorithm
- Confirm DTC and clear codes, then cycle door to see if code returns; note when it returns (immediately, after driving, after rain).
- Visually inspect connectors at door jamb switch and BCM for corrosion, water ingress, or bent pins; secure connectors and recheck.
- With ignition ON, back-probe the switch connector. Verify supply voltage, ground reference, and switch output changes when opening/closing the door. Record voltages.
- If the switch output is stuck to ground or shorted, disconnect the door connector and measure resistance between the switched wire and chassis ground. Low resistance indicates a short to ground in the harness.
- Perform continuity checks from the switch pin to the BCM/door module pin with connectors disconnected; check for high resistance or intermittent connection while flexing the harness (hinge area).
- If wiring and connector check good, bench-test or replace the door jamb/lock switch, then re-test.
- If fault persists after replacing switch and repairing wiring, inspect/replace the BCM/door module or perform module bench diagnostics (refer to manufacturer procedures).
- After repairs, clear codes and perform functional test and road test to confirm fault no longer returns.
Likely causes
- Wiring damage at door hinge grommet causing intermittent short to ground
- Corroded/mis-seated connector at the door jamb switch
- Failed door jamb/lock switch
Fault status
Status
Driver door open circuit / short to ground — the driver door open/close switch circuit is reporting either an open circuit or an unintended connection to ground; fault stored when circuit state is outside expected parameters.
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
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Code
B1319
HUMMER
B — Body
Sunload Sensor Short Circuit
Views:
UK: 3
EN: 16
RU: 5
AI status
Completed
Completed
100%
Causes
- Damaged or chafed wiring in driver door harness (hinge area)
- Corroded or loose connector at door jamb switch or door module
- Faulty driver door jamb/lock switch (mechanical/electrical failure)
- Short to ground in the switch output wire
- Faulty Body Control Module (BCM) or door module (less common)
- Water ingress or contamination in switch or connector
Symptoms
- Driver door open indicator lamp or message illuminated
- Interior lights stay on or do not respond correctly
- Central locking or alarm may behave erratically
- Possible inability to lock/unlock driver door from remote or switch
- DTC present in vehicle diagnostic scanner
What to check
- Read all stored/active codes with a diagnostic scanner and record freeze frame/live data
- Visually inspect driver door harness, hinge grommet, and connectors for damage, corrosion, pin push-out, or moisture
- Check operation of driver door jamb/lock switch by manually actuating it and watching live data (door open/closed status) on a scan tool
- Back-probe the switch connector to confirm signal changes when door is opened/closed
- Perform a wiggle test on the wiring while watching live data to reproduce the fault
- Inspect door lock actuator and latch area for mechanical binding that could affect the switch
Signal parameters
- Supply voltage to switch: ~12 V (check for presence with key on)
- Switch output: toggles between supply voltage and open/high-impedance or ground depending on design; monitor as door opens/closes
- Resistance/continuity on switch circuit: near infinite when open, low when closed (varies by design)
- Live data PID: Driver door open status (0/1) should change consistently with physical state
Diagnostic algorithm
- Confirm DTC and clear codes, then cycle door to see if code returns; note when it returns (immediately, after driving, after rain).
- Visually inspect connectors at door jamb switch and BCM for corrosion, water ingress, or bent pins; secure connectors and recheck.
- With ignition ON, back-probe the switch connector. Verify supply voltage, ground reference, and switch output changes when opening/closing the door. Record voltages.
- If the switch output is stuck to ground or shorted, disconnect the door connector and measure resistance between the switched wire and chassis ground. Low resistance indicates a short to ground in the harness.
- Perform continuity checks from the switch pin to the BCM/door module pin with connectors disconnected; check for high resistance or intermittent connection while flexing the harness (hinge area).
- If wiring and connector check good, bench-test or replace the door jamb/lock switch, then re-test.
- If fault persists after replacing switch and repairing wiring, inspect/replace the BCM/door module or perform module bench diagnostics (refer to manufacturer procedures).
- After repairs, clear codes and perform functional test and road test to confirm fault no longer returns.
Likely causes
- Wiring damage at door hinge grommet causing intermittent short to ground
- Corroded/mis-seated connector at the door jamb switch
- Failed door jamb/lock switch
Fault status
Status
Driver door open circuit / short to ground — the driver door open/close switch circuit is reporting either an open circuit or an unintended connection to ground; fault stored when circuit state is outside expected parameters.
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
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Code
B1319
LAND ROVER
B — Body
Driver's door ajar - circuit failure
Views:
UK: 4
EN: 13
RU: 2
AI status
Completed
Completed
100%
Causes
- Damaged or chafed wiring in driver door harness (hinge area)
- Corroded or loose connector at door jamb switch or door module
- Faulty driver door jamb/lock switch (mechanical/electrical failure)
- Short to ground in the switch output wire
- Faulty Body Control Module (BCM) or door module (less common)
- Water ingress or contamination in switch or connector
Symptoms
- Driver door open indicator lamp or message illuminated
- Interior lights stay on or do not respond correctly
- Central locking or alarm may behave erratically
- Possible inability to lock/unlock driver door from remote or switch
- DTC present in vehicle diagnostic scanner
What to check
- Read all stored/active codes with a diagnostic scanner and record freeze frame/live data
- Visually inspect driver door harness, hinge grommet, and connectors for damage, corrosion, pin push-out, or moisture
- Check operation of driver door jamb/lock switch by manually actuating it and watching live data (door open/closed status) on a scan tool
- Back-probe the switch connector to confirm signal changes when door is opened/closed
- Perform a wiggle test on the wiring while watching live data to reproduce the fault
- Inspect door lock actuator and latch area for mechanical binding that could affect the switch
Signal parameters
- Supply voltage to switch: ~12 V (check for presence with key on)
- Switch output: toggles between supply voltage and open/high-impedance or ground depending on design; monitor as door opens/closes
- Resistance/continuity on switch circuit: near infinite when open, low when closed (varies by design)
- Live data PID: Driver door open status (0/1) should change consistently with physical state
Diagnostic algorithm
- Confirm DTC and clear codes, then cycle door to see if code returns; note when it returns (immediately, after driving, after rain).
- Visually inspect connectors at door jamb switch and BCM for corrosion, water ingress, or bent pins; secure connectors and recheck.
- With ignition ON, back-probe the switch connector. Verify supply voltage, ground reference, and switch output changes when opening/closing the door. Record voltages.
- If the switch output is stuck to ground or shorted, disconnect the door connector and measure resistance between the switched wire and chassis ground. Low resistance indicates a short to ground in the harness.
- Perform continuity checks from the switch pin to the BCM/door module pin with connectors disconnected; check for high resistance or intermittent connection while flexing the harness (hinge area).
- If wiring and connector check good, bench-test or replace the door jamb/lock switch, then re-test.
- If fault persists after replacing switch and repairing wiring, inspect/replace the BCM/door module or perform module bench diagnostics (refer to manufacturer procedures).
- After repairs, clear codes and perform functional test and road test to confirm fault no longer returns.
Likely causes
- Wiring damage at door hinge grommet causing intermittent short to ground
- Corroded/mis-seated connector at the door jamb switch
- Failed door jamb/lock switch
Fault status
Status
Driver door open circuit / short to ground — the driver door open/close switch circuit is reporting either an open circuit or an unintended connection to ground; fault stored when circuit state is outside expected parameters.
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
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Code
B1319
MITSUBISHI
B — Body
Pump motor protection timeout
Views:
UK: 4
EN: 13
RU: 4
AI status
Completed
Completed
100%
Causes
- Damaged or chafed wiring in driver door harness (hinge area)
- Corroded or loose connector at door jamb switch or door module
- Faulty driver door jamb/lock switch (mechanical/electrical failure)
- Short to ground in the switch output wire
- Faulty Body Control Module (BCM) or door module (less common)
- Water ingress or contamination in switch or connector
Symptoms
- Driver door open indicator lamp or message illuminated
- Interior lights stay on or do not respond correctly
- Central locking or alarm may behave erratically
- Possible inability to lock/unlock driver door from remote or switch
- DTC present in vehicle diagnostic scanner
What to check
- Read all stored/active codes with a diagnostic scanner and record freeze frame/live data
- Visually inspect driver door harness, hinge grommet, and connectors for damage, corrosion, pin push-out, or moisture
- Check operation of driver door jamb/lock switch by manually actuating it and watching live data (door open/closed status) on a scan tool
- Back-probe the switch connector to confirm signal changes when door is opened/closed
- Perform a wiggle test on the wiring while watching live data to reproduce the fault
- Inspect door lock actuator and latch area for mechanical binding that could affect the switch
Signal parameters
- Supply voltage to switch: ~12 V (check for presence with key on)
- Switch output: toggles between supply voltage and open/high-impedance or ground depending on design; monitor as door opens/closes
- Resistance/continuity on switch circuit: near infinite when open, low when closed (varies by design)
- Live data PID: Driver door open status (0/1) should change consistently with physical state
Diagnostic algorithm
- Confirm DTC and clear codes, then cycle door to see if code returns; note when it returns (immediately, after driving, after rain).
- Visually inspect connectors at door jamb switch and BCM for corrosion, water ingress, or bent pins; secure connectors and recheck.
- With ignition ON, back-probe the switch connector. Verify supply voltage, ground reference, and switch output changes when opening/closing the door. Record voltages.
- If the switch output is stuck to ground or shorted, disconnect the door connector and measure resistance between the switched wire and chassis ground. Low resistance indicates a short to ground in the harness.
- Perform continuity checks from the switch pin to the BCM/door module pin with connectors disconnected; check for high resistance or intermittent connection while flexing the harness (hinge area).
- If wiring and connector check good, bench-test or replace the door jamb/lock switch, then re-test.
- If fault persists after replacing switch and repairing wiring, inspect/replace the BCM/door module or perform module bench diagnostics (refer to manufacturer procedures).
- After repairs, clear codes and perform functional test and road test to confirm fault no longer returns.
Likely causes
- Wiring damage at door hinge grommet causing intermittent short to ground
- Corroded/mis-seated connector at the door jamb switch
- Failed door jamb/lock switch
Fault status
Status
Driver door open circuit / short to ground — the driver door open/close switch circuit is reporting either an open circuit or an unintended connection to ground; fault stored when circuit state is outside expected parameters.
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
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Code
B1319
Other
B — Body
Driver Door Ajar Circuit Failure
Views:
UK: 18
EN: 32
RU: 36
AI status
Completed
Completed
100%
Causes
- Damaged or chafed wiring in driver door harness (hinge area)
- Corroded or loose connector at door jamb switch or door module
- Faulty driver door jamb/lock switch (mechanical/electrical failure)
- Short to ground in the switch output wire
- Faulty Body Control Module (BCM) or door module (less common)
- Water ingress or contamination in switch or connector
Symptoms
- Driver door open indicator lamp or message illuminated
- Interior lights stay on or do not respond correctly
- Central locking or alarm may behave erratically
- Possible inability to lock/unlock driver door from remote or switch
- DTC present in vehicle diagnostic scanner
What to check
- Read all stored/active codes with a diagnostic scanner and record freeze frame/live data
- Visually inspect driver door harness, hinge grommet, and connectors for damage, corrosion, pin push-out, or moisture
- Check operation of driver door jamb/lock switch by manually actuating it and watching live data (door open/closed status) on a scan tool
- Back-probe the switch connector to confirm signal changes when door is opened/closed
- Perform a wiggle test on the wiring while watching live data to reproduce the fault
- Inspect door lock actuator and latch area for mechanical binding that could affect the switch
Signal parameters
- Supply voltage to switch: ~12 V (check for presence with key on)
- Switch output: toggles between supply voltage and open/high-impedance or ground depending on design; monitor as door opens/closes
- Resistance/continuity on switch circuit: near infinite when open, low when closed (varies by design)
- Live data PID: Driver door open status (0/1) should change consistently with physical state
Diagnostic algorithm
- Confirm DTC and clear codes, then cycle door to see if code returns; note when it returns (immediately, after driving, after rain).
- Visually inspect connectors at door jamb switch and BCM for corrosion, water ingress, or bent pins; secure connectors and recheck.
- With ignition ON, back-probe the switch connector. Verify supply voltage, ground reference, and switch output changes when opening/closing the door. Record voltages.
- If the switch output is stuck to ground or shorted, disconnect the door connector and measure resistance between the switched wire and chassis ground. Low resistance indicates a short to ground in the harness.
- Perform continuity checks from the switch pin to the BCM/door module pin with connectors disconnected; check for high resistance or intermittent connection while flexing the harness (hinge area).
- If wiring and connector check good, bench-test or replace the door jamb/lock switch, then re-test.
- If fault persists after replacing switch and repairing wiring, inspect/replace the BCM/door module or perform module bench diagnostics (refer to manufacturer procedures).
- After repairs, clear codes and perform functional test and road test to confirm fault no longer returns.
Likely causes
- Wiring damage at door hinge grommet causing intermittent short to ground
- Corroded/mis-seated connector at the door jamb switch
- Failed door jamb/lock switch
Fault status
Status
Driver door open circuit / short to ground — the driver door open/close switch circuit is reporting either an open circuit or an unintended connection to ground; fault stored when circuit state is outside expected parameters.
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
Similar codes
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